mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
135 lines
3.1 KiB
135 lines
3.1 KiB
/* |
|
* Alpha optimized DSP utils |
|
* Copyright (c) 2002 Falk Hueffner <falk@debian.org> |
|
* |
|
* This file is part of FFmpeg. |
|
* |
|
* FFmpeg is free software; you can redistribute it and/or |
|
* modify it under the terms of the GNU Lesser General Public |
|
* License as published by the Free Software Foundation; either |
|
* version 2.1 of the License, or (at your option) any later version. |
|
* |
|
* FFmpeg is distributed in the hope that it will be useful, |
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
* Lesser General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU Lesser General Public |
|
* License along with FFmpeg; if not, write to the Free Software |
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
*/ |
|
|
|
/* |
|
* These functions are scheduled for pca56. They should work |
|
* reasonably on ev6, though. |
|
*/ |
|
|
|
#include "regdef.h" |
|
|
|
/* Some nicer register names. */ |
|
#define ta t10 |
|
#define tb t11 |
|
#define tc t12 |
|
#define td AT |
|
/* Danger: these overlap with the argument list and the return value */ |
|
#define te a5 |
|
#define tf a4 |
|
#define tg a3 |
|
#define th v0 |
|
|
|
.set noat |
|
.set noreorder |
|
.arch pca56 |
|
.text |
|
|
|
/************************************************************************ |
|
* void put_pixels_axp_asm(uint8_t *block, const uint8_t *pixels, |
|
* int line_size, int h) |
|
*/ |
|
.align 6 |
|
.globl put_pixels_axp_asm |
|
.ent put_pixels_axp_asm |
|
put_pixels_axp_asm: |
|
.frame sp, 0, ra |
|
.prologue 0 |
|
|
|
and a1, 7, t0 |
|
beq t0, $aligned |
|
|
|
.align 4 |
|
$unaligned: |
|
ldq_u t0, 0(a1) |
|
ldq_u t1, 8(a1) |
|
addq a1, a2, a1 |
|
nop |
|
|
|
ldq_u t2, 0(a1) |
|
ldq_u t3, 8(a1) |
|
addq a1, a2, a1 |
|
nop |
|
|
|
ldq_u t4, 0(a1) |
|
ldq_u t5, 8(a1) |
|
addq a1, a2, a1 |
|
nop |
|
|
|
ldq_u t6, 0(a1) |
|
ldq_u t7, 8(a1) |
|
extql t0, a1, t0 |
|
addq a1, a2, a1 |
|
|
|
extqh t1, a1, t1 |
|
addq a0, a2, t8 |
|
extql t2, a1, t2 |
|
addq t8, a2, t9 |
|
|
|
extqh t3, a1, t3 |
|
addq t9, a2, ta |
|
extql t4, a1, t4 |
|
or t0, t1, t0 |
|
|
|
extqh t5, a1, t5 |
|
or t2, t3, t2 |
|
extql t6, a1, t6 |
|
or t4, t5, t4 |
|
|
|
extqh t7, a1, t7 |
|
or t6, t7, t6 |
|
stq t0, 0(a0) |
|
stq t2, 0(t8) |
|
|
|
stq t4, 0(t9) |
|
subq a3, 4, a3 |
|
stq t6, 0(ta) |
|
addq ta, a2, a0 |
|
|
|
bne a3, $unaligned |
|
ret |
|
|
|
.align 4 |
|
$aligned: |
|
ldq t0, 0(a1) |
|
addq a1, a2, a1 |
|
ldq t1, 0(a1) |
|
addq a1, a2, a1 |
|
|
|
ldq t2, 0(a1) |
|
addq a1, a2, a1 |
|
ldq t3, 0(a1) |
|
|
|
addq a0, a2, t4 |
|
addq a1, a2, a1 |
|
addq t4, a2, t5 |
|
subq a3, 4, a3 |
|
|
|
stq t0, 0(a0) |
|
addq t5, a2, t6 |
|
stq t1, 0(t4) |
|
addq t6, a2, a0 |
|
|
|
stq t2, 0(t5) |
|
stq t3, 0(t6) |
|
|
|
bne a3, $aligned |
|
ret |
|
.end put_pixels_axp_asm
|
|
|